Washing machine



Oct. 1927.

c. A. MURDOCH WASHING MACHINE Filed April 8. 1924 ssheets-sneet 4 [N VENTOR. (A 0915;. x9. (ll/200C -71 TTORNEYS.

- INVENTOR. 0%?! A9, A. #1000001 W A TTORNE Y? C. A. MURDOCH Oct. 18,1927.

WASHING MACHINE Filed April 8, 1924 5 Sheets-Sheet 5 Patented 0a. 1a,1927.

UNITED STATES CHARLES A. HURDOCH, OF NEW YORK, N. Y.

WASHING MACHINE.

Application filed April 8, 1924. Serial No. 704,905.

Among the principal objects which the present invention has in view are:To provide a machine of the character mentioned arranged to accommodatethe manual 0 erations incident' to the employment 0 the machine; toprevent accidental dislodgment of cleansing fluid on the person of theat-.

Drawings.

Fi re 1 is a longitudinal section of a washlng machine, constructed andarranged in accordance with the present invention.

Figure 2 is a transverse section on enlarged scale, the section beingtaken as on the line 2-2 in Figure 1.

Figure 3 is a plan view of the body of the machine the covering memberbeing removed to show the bottom tray.

Figure 4 is a cross section of the tray, the section being taken as onthe line 4-4 in Fig. 3.

Figure 5 is a bottom plan view of the cover and spraying grid mountedthereon.

Figure 6 is a front edge view thereof.

Figure 7 is a rear edge view thereof.

Figure .8 is a vertical cross section of the cover and spraying gridconnected therewith,

' theFsection being taken as onthe line 8-8 igure 5.

Figure 9 is a .detailed view fragmentary in character showingthe meansfor mounting the supporting blocks of the dish rack.

Figure 10 is a side elevation of a fragment of the side of the machine,showing the starting switches and water supply control valve with whichthe machine is provided, the view being on enlarged scale.

Figure 11 is an edge view of the same.

Figure 12 isa' SGCtlODOf the starting lever and edge view. of the guardtherefor, the sections being taken as on the line 12-42 in Figure 10. v

Figure 13 is a vertical section of the waste pipe and parts associatedtherewith.

Description. As new in the drawings, the machine haw usual character ofpumps of this type.

- which are slightly larger in disclosed embodies a tank 20. The tank ispreferably furnished with a detachable sump basin 21. A drain pan 22andscreen 23 serve to prevent undesired particles passing from theinterior of thetank to the sump basin 21.

Water is supplied to the tank by the pipe 24. The pipe 24 is suitablyconnected with the city or other supply. A spring closed valve 25 ismounted on the pipe 24. The valve 25 has an extended valve 26 which ismanually depressed to open the valve whenever water is required for theoperation of the machine and during the rinsing action thereof. Withthis object in view it will be understood the valve is closed and thesupply of water is suspended until whenever the stem 26' is manuallydepressed; The limited quantity of water usually supplied to the tank iscirculated with more or ess violence by means of the electricmotor 27and the pump 28 driven thereby. As seen in Figure 2 of the drawings, thepump 28 has open communication with the sump 20 through the passage 29in the side of the said sump basin.

The operation of the pump 28 is of lt ge G water delivered therefromenters the pipe 30 which has two outlets registering with the inlets 31and 32. The water delivered to the inlets 31 and 32 enters the lateraldistributing ipes- 33 and 34, best seen in Figures 3 an 5 of thedrawings. Connected with and extended from the pipes 33 and 34 are spraypipes 35 pipes 35 serve the double purpose of a dish old-ing rack and asspray members. The pipes 36 are relied upon chiefly for spraying thecharge held within the'tank 21 and upon the rack formed by the pipes 35.To this end the pipes 36 are greater in number and are provided atcloser intervals with spray openings for gent employed in the washing.

' Both series of pipes are unitedby' their forward ends with channelbars 37- and 38. As shown in Figure 6 of the drawings, the bar 38' hasoverhanging flanges 39 that-form runways for a slide bar .40. Theslidebar 40 is provided with a series of openings. 41 h h than 8.1136.adapt g tore 'sterwit t eo enings int epi es see igure 5 ofthedi-awings. To shift th 6 Eli 40 the same is provided With handl s and 36respectively. The

the water or other determove any foreign matter deposited therein,

or adhering thereto. It is obvious that after the swabbing has beencompleted the slide bars 40 could be left in open position when thecover 43 was lowered and the water sup- 1y turned on. In this way anydeposit reeased by the swabbing would be voided through the end openingsof the pipes and 36.

As seen best in Figures 5 and 8 of the drawings, the spray member orgrid formed by the pipes 34 and 36 are mounted by screws 44 and 45 uponthe lid 43 and within the flange 46 thereof. It will be noted that thescrews 45 are of special construction having knurledsections 47 by whichthe screws may be easily manipulated to retract them for withdrawal fromengagement withthe bar 38. When the screws 45 are withdrawn, it isobvious that the spray member or grid can be swung on the pivots formedby the screws 44. This permits a partial separation of the spray memberor grid andthe lid 43, a desirable feature for the purposes ofsanitation- The lid 43 as best seen in Figure 1 of the drawings hashinges 48 connecting it with the tank 20. It will be noted that theupper spray member is suspended from the lid 43 and contained within theflange 46 thereof, and that when the lid is raised as shown by thebroken line in Figure 1, the inlet 32 is removed from the pipe 30, thejoint normally formed between the pipe 30 and the inlet 32 is a buttedsealtight ]0lIli;. The lid- 43 is maintained in elevated position by acounter-weight 49 suspended in a hollow tubular standard or leg 50. Theweight 49 is suspended by a cable 51 extended. over a,,.

pulle 52 at the upper end of the standard 50. t is obvious that thecounterweight 49 being thus housed is frre from the objectionablefeature of interference with surrounding articlw or persons when saidcover is being raised or lowered.

.As shown best in Figure 1 of the drawings, the dishes'for the washingof which the resent machine is particularly designed, are em in trayssuch as indicated by the letter A in Figure 1 of the drawings. The trayis provided with the usual rack rods and has the usual sides forpreventing the dishes falling.

To hold the tray, I provide a skeleton platform'having side bars 53 and54. The flanges of the bars 54 are upstanding, while the flangesof thebars 53 are dependent. This structure can be best seen in Figures 3 and4 of the drawings. The flanges of the bars 54 being transverselydisposed, affords guides to assist in sliding the trays A, laterallyupon and from the machine after the washing process has been completed.The trays thus delivered from the machine are disposed on a table ordrain-board which is of the same height as the top edge of the tank 20.The offset of the upper edge of the tank 20 permits such table or tablesto drain into said tank.

It will be noted that as the horizontal sections of the bars 54 areslightly below the corresponding sections of the bars 53, the latter orfollowing edge of the tray A, when beingmoved laterally over theplatform drops to the lower level with the resultant that the advancedor' forward ed e of the tray is elevated to override any 0 s struction,and the lowered edge of the tray engages the edge of the bars 53 toarrest the delivery of the tray and to avoid spilling the same. Theplatform thus formed by the bars 53 and 54 is supported by the lid 43.To this end the cover 43 is provided with swing arms 55. l

.The arms 55 are pivoted at 56 in the .pendent flange 46 of the saidcover. The construction is seen in Figures 1 and 8 of the drawings. Asshown in Figure 1 of the drawings the arms 55 are bent, the purposebeing to avoid interference with the tray A, when the same is beingremoved from the machine after the washing operation. has beencompleted.

The arms .55 are pivotally connected by pins 57 with the lowermostmembers of the parallel links 58. The links 58 are disposed in parallelarrangement and are pivotally connected at 59 with the side of the tank20 and at 60 wit]; the socket plates 61.- The construction andarrangement maintains in all elevations of the tray, the paralleldisposition thereof.

In Figure of the drawings, there is ..shown,.in full lines the lowerposition of the form and tray is lowered to the position shown in fulllines in Figure 1 of the drawings. The supply of water is now turned onby d ipressing the stem 26 to open the valve 25. his is done bydepressin the lever 63, the operator engaging the ban le 64 for thatpurpose.

Ifthe lid 43 be closed when the lever 63 is lifted from the positionshown in Figure 10 of the drawings, the lug 65 thereon engages to liftthe plunger 66, which closes the electric switch blade 67 upon its mate68. This completes the electric circuit incorporating the source ofelectricity which in the present case is shown as a battery 69 and themotor 27 It will be noted that when the lid 43 is closed, the plunger 70depresses the spring switch blade 71 to contact with the switch blade72, the switch blades being in the electric circuit above referred to.It will be noted in this connection thatuntil the lid 43 is closed, theoperating electric circuit cannot be completed even though the switchieveri63 is moved to operating position or not.

In Figure 12 of the drawings, the lever .i 63 is shown within the guardplate 62 pro-' vided therefor. The lever-63 has a notch 74 provided.v toengage the inclined surface 73 with which the guard plate 62 isprovided. It will, be seen that when the lever 63 is lifted to itsuppermost position, the inclined surface 74 of the guard plate can beengaged by'the notch 73 provided the lever 63 is moved in linetherewith. The continuation of the machine when not directly attended isthus insured.

The water level in the tank 20 is controlled by the movement of atubular valve 75. The valve 75 is open at the lower end and adapted toclose the waste pipe 78. A sliding cover 83 is movable lengthwise theipe 78 to rest over to cover the orifices 6 provided in the valve 75.The waste pipe 78 is suitably connected with the service plumbing andwith the sump 21 by means of ,the branch pipe 79.

It is obvious that as the cover 84 closes or opens the orifice 76,- thewater level in the tank 20 is maintained at the level of the orifice 77.Any suitable arrangement for lifting the cover 84 may be employed tocontrol the opening of the said orifice.

In the usual operation of, the machine when constructed and arranged inaccordance with the present invention, the handle 64 is depressed andheld in the position shown in Figure 10 of the drawings by brokon linesin the lower position. The stem 26' is depressed by the In 65 in linewith the stem 26. This 0 ens the valve 25 admitting water to the tan 20,while the lever 63 is in the lowered position: When sufiicient water hasbeen drawn in the tank 20 to overflow at the opening 76 the lever 63 islifted or allowed to lift. The lid 43 is now and 68, 71 and 72, battery69, and motor 272' The motor 27 drives the rotor of the centrifugal pump28 which draws the water from the sump basin 21 to deliver it to thetank 20 through the pipes 30, 33, 34, 35 and- 36. It will be understoodthat the flow speed of the water is controlled by the pump 28' with theresult that if soap or other detergent has been placed in the tank, ittogether with the water in which it is suspended, will be agitated toprovide suds, and for the washing process also it will be noted that thestreams of water flowing from the pipes 35 and 36 are directed upon thecrockery or other material with the result that same is cleansed. p

The above action is continued until the cleansing having been completed,the lever 63 is depressed to break the electriccircuit incorporating themotor 27. If it is desired to rinse the dishes, the lever 63 is moved tothe-lower position shown in Figure 10, in which position it is obviousthe motor 27 is cut out, while the valve 25 is opened, therebypermitting the clear water to flow into the tank 20 and through thewaste carrying with-it the materials removed from the crockery and thesoapy water with which the tank has been provided. When it is desired tosuspend this operation, the lever 63 is lifted closing the valve 25.

Mention has been made above concerning the cleansing of the pipes 35 and36 through the openings 41 provided in the slide bar 40. Provision isalso made for the removal of the racksembodying the pipes 35 and 36. Tothis end the screws 44.which form the pivots on which the said racksswing, are

retracted out of engagement with the said racks. The racks can then beremoved from the tank. Before removing the lower rack having the pipes33 and 35, it would be necessary to remove the latform. This is readilyaccomplished by hfting them out of engagement with the socket plates 61.

To this end, the socket plates have overhanging sides 80 which receivecorresponding flanges on the slide blocks 81 to which the platform andthe .members 53 thereof are rigidly secured by screws 82, or othersuitable means;

As seen best-in Figures 4 and 9 of the drawings, the platform issteadied in its raised position by spring members 83 between which theplatform, and particularly the levers 58 are forced when elevated incorrespondence with the movement of the lid 43. The platform and partsassociated therewith are thereby held firm-1y, while the tray A, withits load of crockery is placed on the platform.

pump 28 and the distributing pipes "33 and 34. The valve 85 is soconstructed and arranged as to open upward when moved thereto bypressure on the column in the pipe 30.- When, however, the pressureinthe pipe .30 is suspended as when the pipe 28 is stopped the valve 85closes and shuts off or retards the water entering the tank 20 fromflowing through the pipe 30 into the sum 21. This arrangement isparticularly a vantageous when rinsing the dishes being cleaned.

Claims:

1 A washing machine comprising a tank, a lid pivoted to the tank, andmeans for circulating water through the tank, said means embodying aspraying rack pivotally attached to said lid to swing thereon forpresenting the end of said rack for cleansing purposes in spacedrelation to said lid.

2. A washing machine comprising a tank,

a lid pivoted to the tank, a spraying rack disposed within the tank andbeneath the lid, means for pivotally attaching the rack 3. A washingmachine comprising a tank,

a lid for the tank, an article holding 4 latform, and means associatedwith said li for elevating and depressing said platform incorrespondence with the movement of said lid, said means embodyinglifting arm's operatively connecting said platform and said lid, saidlifting arms-havinga plurality of parallel members disposed to maintainsaid platform in a horizontal position, and socket members" for holdingsaid platform in its depressed position.

4. A washing machine comprising a tank, a lid for the tank, an articleholdin platform, and means associated with said 'd for elevating anddepressing said platform in correspondence with the movement of saidlid, said means embodying lifting arms operatively connecting saidplatform and said lid, said lifting arms having a plurality of parallelmembers disposed to maintain said platform in a horizontal position,socket members for holding said platform in its depressed position, andsocket blocks on sald platform removably engaged in said sockets.

CHARLES A; MURDOCH.

